Connect a Keypad 4 Ã— 4 to the Lpc 23xx

Hi, I want to connect a Keypad 4 Ã— 4 to the Lpc 23xx . I used the LCD_4bit code and after pressing the button, the character want on the LCD displayed But it doesn't Work. Pin description for...
Connect a Keypad 4 Ã— 4 to the Lpc 23xx

Hi, I want to connect a Keypad 4 Ã— 4 to the Lpc 23xx . I used the LCD_4bit code and after pressing the button, the character want on the LCD displayed But it doesn't Work. Pin description for...
keypad

hi,what is the driver for an 8 bit keypad?i need ur help,urgent.tnx
keypad

hi,what is the driver for an 8 bit keypad?i need ur help,urgent.tnx
Keypad Help

Hey guys, I am currently trying to interface a 4x4 matrix keypad to 89c52. i have conntected the keypad to 89C52 column and row. Pin 12 is for column1, pin 13 for col 2, pin 14 for col 3, pin 15 for col...